Independently heated handgrips for a motorcycle

ABSTRACT

Systems and methods for heating a handgrip of a vehicle. One system includes a first handgrip and a second handgrip. The first handgrip includes a first processor, a first heating element, and a first temperature sensor configured to produce a temperature signal indicative of a temperature related to the first heating element. The second handgrip includes a second processor, second heating element, and a second temperature sensor configured to produce a temperature signal indicative of a temperature related to the second heating element. The first processor is configured to receive a temperature signal from the first sensor, compare the signal to a first threshold, and adjust power supplied to the first element based on the signal. The second processor is configured to receive a second temperature signal from the second sensor, compare the signal to a second threshold, and adjust power supplied to the second element based on the signal.

RELATED APPLICATIONS

This application is a continuation-in-part of U.S. patent applicationSer. No. 16/181,706 filed on Nov. 6, 2018, which claims priority to U.S.Provisional Patent Application No. 62/581,951, filed on Nov. 6, 2017,the entire contents of both prior-filed applications are incorporatedherein by reference.

FIELD

Embodiments described herein relate to systems and methods of providingheat through a steering mechanism of a vehicle, such as the handlebarsof a motorcycle.

SUMMARY

Heated handgrips for motorcycles may include a single temperaturefeedback sensor contained at one location on the handlebars. In somecases, the sensor may be located within one of the handgrips. This setupmay present a temperature gradient between the left side grip and theright side grip due to the fact that the temperature of the other gripis unknown.

Accordingly, embodiments described herein provide temperature sensingand heating of a handgrip to solve these and other problems. Forexample, one embodiment provides a heated handgrip system including afirst handgrip and a second handgrip. The first handgrip includes afirst electronic processor, a first heating element, and a firsttemperature sensor configured to produce a first temperature signalindicative of a temperature related to the first heating element. Thesecond handgrip includes a second electronic processor, a second heatingelement, and a second temperature sensor configured to produce atemperature signal indicative of a temperature related to the secondheating element. The first electronic processor is communicativelycoupled to the first handgrip and is configured to receive a firsttemperature signal from the first temperature sensor, compare the firsttemperature signal to a first predetermined temperature threshold, andadjust power supplied to the first heating element via the firstelectronic processor based on the comparison of the first temperaturesignal to the first predetermined threshold. The second electronicprocessor communicatively coupled to the second handgrip and isconfigured to receive a second temperature signal from the secondtemperature sensor, compare the second temperature signal to a secondpredetermined temperature threshold, and adjust power supplied to thesecond heating element via the second electronic processor based on thecomparison of the second temperature signal and the second predeterminedthreshold.

Another embodiment provides a method of heating a first handgrip and asecond handgrip. The method includes providing power to a firsttemperature sensor associated with the first handgrip, receiving a firsttemperature signal from the first temperature sensor, comparing, via afirst electronic processor associated with the first handgrip, the firsttemperature signal to a first predetermined temperature threshold, andadjusting power provided to a first heating element associated with thefirst handgrip via the first electronic processor based on thecomparison of the first temperature signal and the first predeterminedtemperature threshold. The method further includes providing power to asecond temperature sensor associated with the second handgrip, receivinga second temperature signal from the second temperature sensor,comparing, via a second electronic processor associated with the secondhandgrip, the second temperature signal to a second predeterminedtemperature threshold, and adjusting power provided to a second heatingelement associated with the second handgrip via the second electronicprocessor based on the comparison of the second temperature signal andthe second predetermined temperature threshold.

Other aspects will become apparent by consideration of the detaileddescription and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically illustrates a handgrip heating system according tosome embodiments.

FIG. 2 illustrates a motorcycle system including the handgrip heatingsystem of FIG. 1 according to some embodiments.

FIG. 3A illustrates a circuit schematic of the handgrip heating systemof FIG. 1 according to some embodiments.

FIG. 3B illustrates a circuit schematic of the handgrip heating systemof FIG. 1 according to some embodiments.

FIG. 4A illustrates a user interface of the handgrip heating system ofFIG. 1 according to some embodiments.

FIG. 4B illustrates a user interface of the handgrip heating system ofFIG. 1 according to some embodiments.

FIG. 4C illustrates a user interface of the handgrip heating system ofFIG. 1 according to some embodiments.

FIG. 4D illustrates a user interface of the handgrip heating system ofFIG. 1 according to some embodiments.

FIG. 5 is a flowchart illustrating a method of operating the handgripheating system of FIG. 1 according to some embodiments.

FIG. 6 illustrates a circuit schematic of the handgrip heating system ofFIG. 1 according to some embodiments.

FIG. 7 illustrates a grip sensing system including a laser distancesensor according to some embodiments.

FIG. 8 illustrates a combination grip for performing both heating andgrip sensing according to some embodiments.

FIG. 9 schematically illustrates the handgrip heating system of FIG. 1according to some embodiments.

DETAILED DESCRIPTION

Before any embodiments of the invention are explained in detail, it isto be understood that the invention is not limited in its application tothe details of construction and the arrangement of components set forthin the following description or illustrated in the following drawings.The invention is capable of other embodiments and of being practiced orof being carried out in various ways.

Also, it is to be understood that the phraseology and terminology usedherein is for the purpose of description and should not be regarded aslimiting. The use of “including,” “comprising” or “having” andvariations thereof herein is meant to encompass the items listedthereafter and equivalents thereof as well as additional items. Theterms “mounted,” “connected” and “coupled” are used broadly andencompass both direct and indirect mounting, connecting and coupling.Further, “connected” and “coupled” are not restricted to physical ormechanical connections or couplings, and can include electricalconnections or couplings, whether direct or indirect. Also, electroniccommunications and notifications may be performed using any known meansincluding direct connections, wireless connections, etc.

It should also be noted that a plurality of hardware and software baseddevices, as well as a plurality of different structural components maybe utilized to implement the invention. In addition, it should beunderstood that embodiments of the invention may include hardware,software, and electronic components or modules that, for purposes ofdiscussion, may be illustrated and described as if the majority of thecomponents were implemented solely in hardware. However, one of ordinaryskill in the art, and based on a reading of this detailed description,would recognize that, in at least one embodiment, the electronic basedaspects of the invention may be implemented in software (for example,stored on non-transitory computer-readable medium) executable by one ormore processors. As such, it should be noted that a plurality ofhardware and software based devices, as well as a plurality of differentstructural components may be utilized to implement the invention. Forexample, “control units” and “controllers” described in thespecification may include processing components, such as one or moreprocessors, one or more memory modules including non-transitorycomputer-readable medium, one or more input/output interfaces, andvarious connections (for example, a system bus) connecting thecomponents. It should be understood that while several elements arereferred herein to being associated with a “left” or a “right” handgrip,embodiments described herein are not limited to a steering mechanism orhandle with distinct left and right handgrips, and the embodimentsdescribed herein can be used with other types of steering mechanismswith other configurations. Also, in various configurations, elementsdescribed herein as being included or associated with a left handgripmay be included or associated with a right handgrip or vice versa.

FIG. 1 schematically illustrates a handgrip heating system 100. Thehandgrip heating system 100 includes an electronic processor 102, afirst (left) grip heating module 104, a second (right) grip heatingmodule 106, a user interface 108, a polarity switching circuit, such asan H-bridge 112, and a battery 116. In some embodiments, the handgripheating system 100 further includes a memory 118, a transceiver 120, orboth. The electronic processor 102 is coupled (for example, directly) tothe left grip heating module 104 and is coupled to the right gripheating module 106 via the H-bridge 112. As illustrated in FIG. 2, thehandgrip heating system 100 may be installed onto or integrated into amotorcycle 200 and, in particular, may be positioned onto or withinproximity to a handlebar 202 of the motorcycle 200. In some embodiments,the handgrip heating system 100 may be an electronic device attachableto the handlebar 202 of the motorcycle 200. In other embodiments, someof all of the elements of the handgrip heating system 100 are integratedinto the handlebar 202 and the motorcycle 200. For example, returning toFIG. 1, in the illustrated embodiment, the left grip heating module 104is integrated into a left handgrip 103 of a handlebar (for example, thehandlebar 202 of FIG. 2), and the right grip heating module 106 isintegrated into a right handgrip 105 of a handlebar (for example, thehandlebar 202 of FIG. 2). In this configuration, the remaining elementsmay be housed together within one or more devices coupled to themotorcycle 200, integrated within the motorcycle 200, or somecombination thereof.

As illustrated in FIG. 1, the handgrip heating system 100 receives powerfrom the battery 116. In some embodiments, the battery 116 includes adedicated battery for the handgrip heating system 100. However, in otherembodiments, the battery 116 is a battery included in the motorcycle 200(for powering other components of the motorcycle 200) and may provideelectrical power to the handgrip heating system 100 through wiring. Forexample, when the handgrip heating system 100 is positioned on thehandlebar 202 (see FIG. 2), the handgrip heating system 100 may beelectrically coupled to wiring running through the handlebar 202 coupledto an electrical system of the motorcycle 200. In some embodiments, theelectrical system receives electrical power generated from operation ofan internal combustion engine included in the motorcycle 200 (FIG. 2),such as, for example, through an alternator. In some embodiments, thehandgrip heating system 100 is configured to (for example, via theelectronic processor 102) monitor input voltage and remove power to theheating elements (described below) in response to the voltage exceedinga predetermined amount (for example, 16 VDC) or falling below apredetermined amount (for example, 11 VDC).

The user interface 108 receives input from and optionally providesoutput to a user of the handgrip heating system 100 to allow the user tointeract with the handgrip heating system 100. For example, in someembodiments, the user interface 108 includes one or more user actuateddevices 130, such as one or more buttons, switches, bumper switches,toggles, dials, a keypad, a scroll knob, or a combination thereof. Theuser interface 108 may also include a display device, such as one ormore light-emitting diodes (LEDs) 132. Alternatively or in addition, theuser interface 108 may include a touchscreen, an LED display, a liquidcrystal display (LCD), or a combination thereof. For example, in someembodiments, the user interface 108 is configured to display a graphicaluser interface (GUI) generated by the electronic processor 102. In someembodiments, such a GUI may be implemented on a portable electronicdevice separate from the system 100 (for example, a smartphone). Forexample, in addition to or as an alternative to receiving or outputtinginformation via the user interface 108, a user may execute a softwareapplication installed on a separate portable electronic device, such asa smartphone that allows a user to set a temperature, see a currenttemperature of one or both grips, or a combination thereof. In thisconfiguration, the software application installed on the separateportable electronic device communicates (directly or indirectly over oneor more wired or wireless communication networks, such as, for example,the Internet, Bluetooth, WiFi, a cellular network, or the like) with theelectronic processor 102 to control and monitor the modules 104 and 106.Accordingly, it should be understood that functionality described hereinas being performed by through the user interface 108 may alternativelybe performed through a portable electronic device operated by the userthat communicates with the system 100.

A user of the handgrip heating system 100 may activate the handgripheating system 100 and select a temperature setting for the modules 104and 106 via the user interface 108 (for example, using one or more useractuated devices 130). In some embodiments, the user interface 108provides a set of predetermined temperature states, wherein each statecorresponds to a set temperature or range of temperatures. For example,through the user interface 108, a user may be able to choose from a lowtemperature setting (for example, approximately 100° F.), a mediumtemperature setting (for example, approximately 110° F.), and a hightemperature (for example, approximately 120° F.). In some embodiments,the temperature or temperatures corresponding to a temperature state maybe a preconfigured default or may be customizable by the user. Also, insome embodiments, the temperature setting may be a specific temperatureselected by the user. Furthermore, in some embodiments, a temperaturesetting may be provided for both the right and left grip heating modules104 and 106. The temperature settings (available settings, selectedsettings, or a combination thereof) may be stored in a memory local to(for example, the memory 118) or remote from the handgrip heating system100. The user interface 108 may also indicate a current or presenttemperature setting. For example, in some embodiments, the electronicprocessor 102 may illuminate or flash (in a pattern) a particular numberof LEDs of the LEDs 132 to indicate the present temperature setting.

FIGS. 4A-4D each illustrate an example of the user interface 108according to some embodiments. FIGS. 4A-4D illustrate the user interface108 integrated into the left grip heating module 104. However, it shouldbe understood that the user interface 108 may be integrated into eitherheating module 104 and 106 and, in some embodiments, may be distributedbetween both heating modules 104 and 106. FIG. 4A illustrates the userinterface 108 including a pushbutton as the user actuated device 130 andthe plurality of LEDs 132 including three LEDs to indicate the presenttemperature state. FIG. 4B illustrates the user interface 108 includinga pushbutton as the user actuated device 130 and the plurality of LEDs132. The plurality of LEDs 132 in this configuration includes three LEDsto indicate the present temperature state and a fourth LED 132A toindicate when the handgrip heating system 100 is active. FIG. 4Cillustrates the user interface 108 including a switch as the useractuated device 130 and the plurality of LEDs 132. In thisconfiguration, the plurality of LEDs 132 also includes three LEDs toindicate the present temperature state and a fourth LED 132A integratedin the user actuated device 130 to indicate when the handgrip heatingsystem 100 is active. FIG. 4D illustrates the user interface 108including a bumper switch as the user actuated device 130 and theplurality of LEDs 132 including three LEDs to indicate the presenttemperature state. These embodiments of the user interface 108 areprovided as examples and other configurations are possible.

Returning to FIG. 1, the electronic processor 102 includes amicroprocessor, an application specific integrated circuit (ASIC), orother electronic device that executes instructions (software) to performspecific functionality, including the functionality described herein.The electronic processor 102 may retrieve executable instructions fromthe memory 118. The memory 118 includes a non-transitorycomputer-readable medium that may include one or more types of memory,such as read-only memory (ROM), random access memory (RAM), or acombination thereof.

As noted above, in some embodiments, the handgrip heating system 100includes the transceiver 120. The transceiver 120 may be configured tocommunicate over one or more wired or wireless communication networks.For example, transceiver 120 may include a wired or wireless modem, aconnector or port for receiving a connection to a wired network (forexample, an Ethernet connector, a controller area network (CAN)connector), or a combination thereof. The electronic processor 102 maybe configured to operate the transceiver 120, and the transceiver 120may be configured to communicate with devices internal to the system100, external to the system 100, or a combination thereof. For example,in some embodiments, the electronic processor 102 (via the transceiver120) communicates with a communication system of the motorcycle 200,such as a CAN bus of the motorcycle 200. In particular, the electronicprocessor 102 may communicate a state of the grip heating modules 104and 106 (an operative state, a present temperature setting, or the like)over the CAN bus, which may be consumed and used by other motorcyclecomponents. Alternatively or in addition, the handgrip heating system100 may communicate a state of the grip heating modules 104, 106directly to another motorcycle component over a dedicated wired orwireless connection.

The H-bridge 112 positioned between the electronic processor 102 and theright grip heating module 106 is configured to alternate between twovoltage polarities based a command from the electronic processor 102.The H-bridge 112 is provided as one example of a polarity switchingcircuit and other circuits with similar functionality as an H-bridge 112may be used in place of the H-bridge 112 illustrated and describedherein. The grip heating modules 104 and 106 each include a heatingelement 122 and 124, respectively. Each of the heating elements 122 and124 are configured to heat an area of their respective handgrip 103 and105. In some embodiments, the heating elements 122 and 124 are printedflexible heaters.

Each of the grip heating modules 104 and 106 also include a temperaturesensor 126 and 128, respectively. Each of the temperature sensors 126and 128 is configured to measure a temperature related to each of theheating elements 122 and 124, respectively. In some embodiments, one orboth of the temperature sensors 126 and 128 are thermistors. Thetemperature sensors 126 and 128 may be configured to measure atemperature of the heating element 122 and 124, an area proximate theheating elements 122 and 124, or a combination thereof.

In some embodiments, at least one of the modules 104 and 106 includes adiode. For example, in the embodiment illustrated in FIG. 1, the rightgrip heating module 106 includes a diode 129. As also illustrated inFIG. 1, in some embodiments, a second diode 134 is also positionedbetween the H-bridge 112 and the module 106. As explained in more detailbelow in regard to FIGS. 3A and 3B, the diodes 129 and 134 may be usedto direct current flow to and from the heating module 106 and itscomponents.

In some embodiments, the system 100 further includes a grip sensor 136and 138 in each of the grip heating modules 104 and 106 respectively.The grip sensors 136 and 138 are configured to detect when a user gripsthe respective handgrip 103 or 105. In some embodiments, the gripsensors 136 and 138 may be further configured to measure an amount ofpressure applied to a particular area of the respective handgrip 103 and105. The grip sensors 136 and 138 may be any kind of touch sensor,pressure sensor, or combination thereof. In some embodiments, the gripsensors 136 and 138 are object sensors, for example infrared sensors orcameras, configured to detect the presence of a user's hand to detectwhen the user is gripping a handgrip. In some embodiments, theelectronic processor 102 is configured to operate either the respectiveheating element, temperature sensor, or both of each of the heatingmodules 104 and 106 based on whether the respective grip sensor 136 and138 detects a grip. In other words, the electronic processor 102 mayimplement the heating feature of either handgrip 103 and 105independently in response to detecting a user gripping the particularhandgrip. Controlling heating based on detected grips improves powerefficiency as power is not consumed to heat a handgrip unless a user iscurrently gripping the handgrip.

In some embodiments, the grip heating modules 104 and 106 are partiallyor entirely implemented on a printed flexible circuit board disposedaround and/or within their respective handgrip 103 and 105. In suchembodiments, the temperature sensors 126 and 128, heating elements 122and 124, the grip sensors 136 and 138, or a combination thereof may bedisposed on or integrated into the printed flexible circuit board.Either printed circuit board may also include one or more elements ofthe system 100, such as, for example, one or more H-bridges, diodes, ora combination thereof.

FIGS. 3A and 3B illustrate a circuit schematic 300 of a portion of thehandgrip heating system 100 according to some embodiments. In thecircuit schematic 300, the electronic processor 102 is illustrated aspart of the left grip heating module 104. However, it should beunderstood that, in some embodiments, the electronic processor 102 maybe integrated into either or both heating modules 104 and 106. Infurther embodiments, the electronic processor 102 may be positionedseparate from the modules 104 and 106 (for example, as illustrated inFIG. 1). For example, in some embodiments, the electronic processor 102is housed outside of or separate from the modules 104 and 106.

Returning to FIGS. 3A and 3B, in some embodiments, the right gripheating module 106 is coupled to the H-bridge 112 (and the left gripheating module 104) via two wires. The particular two-wire coupling ofthe right grip heating module 106 to the electronic processor 102(through the H-bridge 112) advantageously reduces the amount of spaceand amount of wire necessary while maintaining a reliable,cost-effective power connection between such elements.

As described above, the H-bridge 112 switches between activation in afirst polarity and activation in a second polarity. FIG. 3A illustratesthe circuit schematic 300 with the H-bridge 112 activated in a secondpolarity (power flow in this configuration is indicated by the dashedpath 302). In the second polarity, the right grip heating module 106receives power from the battery 116 to activate the heating element 124.In some embodiments, the amount of power provided to the heating element124 is based on the temperature setting set by the user of the handgripheating system 100 via the user interface 108. For example, when theheating elements 122 and 124 are operated via a pulse-width modulation(PWM) signal, the duty cycle of the signal is adjusted based on thetemperature setting. However, in other embodiments when thermostaticcontrol is used, the amount of the power delivered to the heatingelement 124 may be constant.

After a predetermined time, the electronic processor 102 switches theH-bridge 112 to a first polarity. The predetermined time may be a settime duration (for example, in embodiments where the heating element 124is thermostatically controlled) or an on or off cycle of a controlsignal (for example, in embodiments where the heating element 124 iscontrolled via a PWM signal). FIG. 3B illustrates the circuit schematic300 with the H-bridge 112 activated in the first polarity (power flow inthis configuration is indicated by the dashed path 304). When theH-bridge 112 is activated in the first polarity, the temperature sensor128 (illustrated as a thermistor) receives power, allowing thetemperature of the right grip heating module 106 to be received by theelectronic processor 102 (via one of the two wires connecting theH-bridge 112 to the right grip heating module 106). In the illustratedembodiment, the sensed temperature is received by the electronicprocessor 102 through a temperature sensing circuit (a conditioncircuit), such as a resistive divider network 306. As explained in moredetail below in regard to FIG. 5, the H-bridge 112 may be set back tothe second polarity based on the temperature sensed by the temperaturesensor 128. In particular, when the sensed temperature of the righthandgrip 105 (from the temperature sensor 128) fails to exceed atemperature threshold (a maximum threshold) for the right grip heatingmodule 106 (the right handgrip 105 is cool and requires additionalheating), the H-bridge 112 may be set to the second polarity (tocontinue heating the right handgrip 105). As noted above, when PWMsignals are used and the temperature signals fails to exceed thetemperature threshold, the H-bridge 112 may be set to the secondpolarity for a predetermined amount of time that depends on a differencebetween the sensed temperature and the temperature threshold.Alternatively, when the sensed temperature of the right handgrip 105(from the temperature sensor 128) exceeds the temperature thresholdassociated with the right handgrip 105, the H-bridge 112 may remain inthe first polarity (monitoring temperature). Alternatively, in thissituation, the H-bridge may be set to an “off” condition where neitherthe temperature sensor 128 nor the heating element 124 is connected topower. It should be understood that in some embodiments, the thresholdsused by the electronic processor 102 may vary depending on the previousstate. For example, when, during the last control cycle, the heatingelement 124 was on (receiving power), the electronic processor 102 willonly turn off the heating element 124 off when the temperature thresholdis exceeded and this threshold may be different from a temperaturethreshold used to determine when to turn the heating element 124 backon. Using different thresholds allows for hysteresis when usingthermostatic (on/off) control.

A high side driver 308 is controlled by the electronic processor 102 toalternate power to the heating element 122 of the left grip heatingmodule 104. Power is supplied to the heating element 122 through thehigh side driver 308 until a predetermined time is exceeded. Asillustrated in FIG. 1, since the electronic processor 102 is included inthe left grip heating module 104 in this embodiment, the temperaturesensor 126 is directly connected to the electronic processor 102 (ascompared to through the H-bridge 112).

Accordingly, as described above, the right grip heating module 106receives power and ground from the left grip heating module 104 via thetwo-wire path, which may pass through a twist-grip sensor for the rightgrip (that has limited space for wiring). Polarity of the power andground is switched by the electronic processor 102 and the H-bridge 112.In particular, in one polarity (see FIG. 3A, illustrating a secondpolarity), the diode 129 allows current to flow through the right gripheating element 124, and the diode 134 allows current flow around aresistor (for example, a 10 k resistor). In some embodiments, a blockingdiode is provided to prevent minimal current flow through thetemperature sensor 128 in this polarity. In the opposite polarity (seeFIG. 3B, illustrating a first polarity), diodes 129 and 134 blockcurrent, which directs current flow through the temperature sensor 128and associated resistive divider network 306. Thus, in this firstpolarity, the electronic processor 102 can sample the voltage throughthe divider network 306 to determine a right grip temperature.Accordingly, the electronic processor 102 can detect the temperature ofboth the left and right handgrips 103 and 105 without requiringextensive and complex wiring between the electronic processor 102 andboth handgrips 103 and 105. It should be understood that, in someembodiments, the electronic processor 102 may also include a secondpolarity switching circuit, such as a second H-bridge configured similarto the H-bridge 112, to provide power to the temperature sensor 126 andthe heating element 122 of the left grip heating module 104 as describedabove in regard to the temperature sensor 128 and heating element 124.

As noted above, in some embodiments, the electronic processor 102 may beincluded in one of the heating modules 104 or 106 (see FIGS. 3A and 3B).However, in other embodiments, the electronic processor 102 may beincluded in a module separate from the left grip heating module 104 andthe right grip heating module 106 (see FIG. 1). In this configuration,the module including the electronic processor 102 may be positioned onthe motorcycle 200 in various locations and orientations. However, insome embodiments, the module 104 or 106 including the electronicprocessor 102 is positioned (mounted) on one of the grips to limitwiring and wiring complexity between the electronic processor 102 andthe modules 104 and 106.

FIG. 6 illustrates a circuit system 600 of the handgrip heating systemof FIG. 1 according to another embodiment. As illustrated in FIG. 6, theelectronic processor 102 (microcontroller) is included in a module 601separate from the left grip heating module 104 but provides power to andcommunication to and from the module 104 using an H-bridge 602 and atwo-wire connection to the module 104. It should be noted that, in theillustrated embodiment, the H-bridge 602 is configured to function as ahigh side driver, similar to the driver 308 of FIGS. 3A and 3B. In theembodiment illustrated in FIG. 6, the module 601 including theelectronic processor 102 is positioned on the left handgrip 103.Therefore, the electronic processor 102 may be connected to thetemperature sensor 126 of the module 104 over a dedicated wiredconnection. However, because the right handgrip 105 is not proximate tothe electronic processor 102, the electronic processor 102 is connectedto the right grip heating module 106 via the H-bridge 112 both toprovide power and communication to and from the module 106 (for example,to receive a temperature reading from the temperature sensor 128included in the module 104).

It should be understood that, in some embodiments, the electronicprocessor 102 is positioned on the right handgrip 105 or within theright grip heating module 106. In such embodiments, the electronicprocessor 102 may use a dedicated connection with the temperature sensor128 of the module 106 to receive temperature signals and may use anH-bridge to receive temperature signals from the left grip heatingmodule 104. Accordingly, in such embodiments, the components andconfiguration of the modules 104 and 106 may be flipped from thecomponents and configuration illustrated in FIG. 6. Alternatively, asmentioned above, in some embodiments, both the grip heating modules 104and 106 include an H-bridge configured to provide power to therespective heating element 122 and 124 and temperature sensor 126 and128 similar to the H-bridge 112 and, thus, provide a two-wire connectionto both handgrips.

FIG. 5 is a flowchart further illustrating a control process or method500 implemented by the electronic processor 102 to control the system600 based on user input received through the user interface 108 in moredetail. Although the method 500 is described in terms of the system 600,it should be understood that a similar method may be applied to thesystem 100.

At block 502, the electronic processor 102 is initialized and, at blocks504 and 506 respectively, the electronic processor 102 deactivates theLEDs and heating elements 122 and 124. In some embodiments, the H-bridge112 is also activated in the first polarity. At blocks 508, 510, 512,and 514, the electronic processor 102 determines user input receivedthrough the user interface 108 for setting a desired temperature of oneor both of the grips. For example, in some embodiments, the electronicprocessor 102 determines the number of times the user actuated device130 has been actuated. Based on the number of times the user actuateddevice 130 is actuated, the electronic processor 102 determines atemperature level or setting for one or both of the grip heating modules104 and 106. For example, in the illustrated embodiments, a singleactuation corresponds to a low heat setting (block 510), two actuationscorrespond to a medium heat setting (block 512), and three actuationscorrespond to a high heat setting (block 514). When the user actuateddevice 130 has not been actuated (block 508), the electronic processor102 returns to block 504 (to wait for subsequent user input). In theillustrated embodiment, when the user actuated device 130 is actuatedagain after being actuated three times, the actuation count returns tozero.

Based on the user input, the electronic processor 102 activates one ormore of the plurality of LEDs 132 to indicate the particular heatsetting (in the illustrated embodiment, a low heat setting, a mediumheat setting, or a high heat setting) and sets a predeterminedtemperature threshold for the heating elements 122 and 124 based on theparticular heat setting (blocks 522, 524, and 526). In the illustratedembodiment, the predetermined temperature threshold includes a maximumthreshold (when heating is turned off) and a minimum threshold (whenheating is turned on). The maximum threshold corresponds to a maximumtemperature threshold that the heated area of the grip heating module104 and 106 may achieve before the corresponding heating element 122 and124 is deactivated. The minimum threshold corresponds to a minimumtemperature threshold that the heated area of the grip heating module104 and 106 may achieve before the corresponding heating element 122 and124 is reactivated. In some embodiments, the maximum threshold, theminimum threshold, or both are dynamically adjusted based on, forexample, a user input, a previous heat setting, a last sensedtemperature, or the like.

At block 528, the electronic processor 102 receives the temperaturesignal from the temperature sensor 126, and, at block 530, theelectronic processor 102 determines whether the temperature signal fromthe temperature sensor 126 falls below than the minimum threshold. Whenthe temperature signal from the temperature sensor 126 falls below theminimum threshold, the electronic processor 102 activates the heatingelement 122 (block 532). When the temperature signal from thetemperature sensor 126 exceeds the minimum threshold, the electronicprocessor 102 determines whether the temperature sensed by thetemperature sensor 126 exceeds the maximum threshold. When thetemperature signal exceeds the maximum threshold, the electronicprocessor 102 deactivates (or discontinues power) to the heating element122 (block 536).

At block 538, (since the H-bridge 112 is in the first polarity) theelectronic processor 102 receives the temperature signal from thetemperature sensor 128 and, at block 540, the electronic processor 102determines whether the temperature signal from the temperature sensor128 falls below than the minimum threshold. When the temperature signalfrom the temperature sensor 128 falls below the minimum threshold, theelectronic processor 102 activates the heating element 124 (block 542).In particular, the electronic processor 102 sets the H-bridge 112 to thesecond polarity as described above. When the temperature signal from thetemperature sensor 128 exceeds the minimum threshold, the electronicprocessor 102 determines whether the temperature sensed by thetemperature sensor 128 exceeds the maximum threshold. When thetemperature signal exceeds the maximum threshold, the electronicprocessor 102 deactivates (or discontinues power) to the heating element124 (block 536). In the illustrated embodiment, the electronic processor102 deactivates the heating element 124 by setting the H-bridge 112 intoan open state, discontinuing power through the H-bridge 112. Theelectronic processor 102 then returns to block 508 to determine whetherthe user actuated device 130 was actuated.

As mentioned above, in some embodiments, the system 100 includes gripsensors 136 and 138. In such embodiments, the electronic processor 102may further be configured to implement the heating function in eithergrip heating module 104 and 106 based on whether the respective gripsensor 136 and 138 indicates the presence of a user's grip. In otherwords, the electronic processor 102 may be configured to discontinuepower to either heating element 122 and 124 (as well as to a respectiveH-bridge when power is provided to the heating element 122 or 124through an H-bridge, such as H-bridge 112) in response to determining,via the respective grip sensor 136 and 138, that there is no grip on therespective handgrip 103 and 105. In some embodiments, power to one orboth of the grip sensors 136 and 138 may be incorporated into thefunction of the H-bridge providing power to the module 104 and/or 106.For example, in some embodiments, one or more both of the grip sensors136 and 138 receive power while the respective heating element 122 and124 is receiving power (the second polarity) or the respectivetemperature sensor 126 and 128 is receiving power (the first polarity).As noted above, the grip sensors 136 and 138 may include touch orpressure sensors. Alternatively or in addition, the grip sensors 136 and138 may include object sensors, for example infrared sensors or cameras,configured to detect the presence of a user's hand to detect when theuser is gripping a handgrip. For example, FIG. 7 illustrates a use of alaser distance sensor 700 configured to detect a distance (illustratedby the dashed line 702) to a handgrip (such as the right handgrip 105).When a user grip's the handgrip 105, the user's hand (fingers) impactthe distance measured by the laser distance sensor 700 and, inparticular, causes the laser distance sensor 700 to measure a (shorter)distance between the laser distance sensor 700 and the user's hand.Accordingly, as this sensed distance changes (when the user's hand ispresent), the electronic processor 102 can determine whether the user isgripping the handgrip 105. In some embodiments, the left handgrip 103includes a similar laser distance sensor 700 as illustrated in FIG. 7for the right handgrip 105.

In some embodiments, the left handgrip 103, the right handgrip 105, orboth provide additional functionality in addition to heat. For example,in some embodiments, each handgrip 103 and 105 provides grip sensing (asdescribed above), grip heating, haptic feedback, or a combinationthereof. In particular, in some embodiments, one or both of thehandgrips 103 and 105 may provide haptic feedback to a user's hands toenhance rider assistance or motorcycle infotainment functions. Forexample, haptic prompts could be used by the navigation system toindicate upcoming right or left turns, or by the vehicle to vehiclecommunication system to inform the user of a vehicle speeding through ablind intersection ahead.

Also, in some embodiments, a detected position of a user's hand or gripmay be used to enhance these functions. For example, grip sensing asdescribed above may be used to detect the user's hand position relativeto the handgrips 103 and 105, such as whether the user's hands are offone or both of handgrips 103 and 105, touching one or both of thehandgrips 103 and 105 but not holding them (based on detectedpressures), holding one or both of the handgrips 103 and 105 lightly ortightly, whether the user is wearing gloves (based on information fromtouch or pressure sensors or colors or patterns detected by optical gripsensors), or the like. As described below, the electronic processor 102may use this detected information regarding the user's grip to modifyoperation of the motorcycle or particular functions of the motorcycle.

Various methods for detecting a user's grip have been described above.However, one specific method that may be used to detect a user's handposition is through a combination grip that provides both heating andgrip sensing. FIG. 8 illustrates one configuration of such a combinationgrip. It should be understood that in the following description, some orall of the components of the combination grip may be included within orconsidered to be part of either or both the grip heating modules 104 and106. As illustrated in FIG. 8, the combination grip includes one or morecapacitive sensing electrodes 800 (copper pads) positioned on a flexibleprinted circuit board 802 that is incorporated into a cylindricalhandgrip, such as the right handgrip 105. Using this configuration, thehandgrip 105 is heated by passing current (for example, PWM current)through a resistive trace 804 also included on the flexible printedcircuit board 802. In some embodiments, incorporating both thecapacitive sensing and heating functions onto a single flexible printedcircuit board reduces overall part count, complexity, and cost ascompared to using two printed circuit boards or two separate circuits.As also illustrated in FIG. 8, in this configuration, a haptic vibrationmotor 806, such as a small eccentric mass motor, is mounted at the endof the handgrip 105, which allows the handgrip 105 to also providehaptic feedback. In some embodiments, a gel-like substance can also beincluded in the combination grip to improve the ability of thecapacitive sensing electrodes to detect a grip presence or pressure,improve the provision of haptic feedback to a user, or a combinationthereof. Other types of intermediary or transform components (whethermechanically-implemented or electrically-implemented) may similarly beused to detect a grip and provide feedback along the handgrip 105.

In some embodiments, the combination grip includes wiring (for example,discrete wires for each heating, grip sensing, and haptic feedback)connecting to an external controller, such as the electronic processor102 described above. For example, in some embodiments, the electronicprocessor 102 described above may control heating of the handgrip 105via the resistive trace 804 by controlling power to the resistive trace804 as described above. In some embodiments, the electronic processor102 may also control the haptic vibration motor 806. The electronicprocessor 102 may also receive sensed information regarding the user'sgrip and control the heating, haptic feedback, motorcycle operation, orthe like based on the sensed information. As compared to using theelectronic processor 102 (or another external controller), in otherembodiments, a microcontroller is incorporated into the combination gripassembly. For example, as illustrated in FIG. 8, in some embodiments,the combination grip includes an electronic processor 808 configured tocontrol heating via the resistive trace 804, to control the hapticvibration motor 806, or both. In this embodiment, the electronicprocessor 808 may include a rigid printed circuit board with amicrocontroller, such as a local interconnect network (LIN)microcontroller, a controller area network (CAN) microcontroller, or thelike. As illustrated in FIG. 8, in some embodiments, the electronicprocessor 808 directly interfaces with the haptic vibration motor 806and is electrically coupled to the flexible printed circuit board 802(and the resistive trace 804) via wiring. As illustrated in FIG. 8, aconnector 810 can connect the flexible printed circuit board 802, theelectronic processor 808, the haptic vibration motor 806, or acombination thereof to an electrical system of the motorcycle, which mayprovide power, ground, and, optionally, communication, such as LINcommunication. It should be understood that in some embodiments, theleft handgrip 103 includes a similar combination grip as illustrated inFIG. 8 for the right handgrip 105. However, in some embodiments,different sensing, heating, or feedback systems may be used between theleft and right handgrips 103 and 105.

It should be understood that in some embodiments, functions describedherein as being performed by a grip assembly described herein, such asthe combination grip, may be incorporated into one or more hand controlswitchpack rather than a handgrip itself. A hand control switchpack isgenerally removably mounted on a handgrip and often includes one or morehand controls for controlling operation of the motorcycle (for example,controlling lights, infotainment features, or the like). For example,when grip sensing is performed using an optical sensor, such as thelaser distance sensor 700 illustrated in FIG. 7, the hand controlswitchpack may incorporate the laser distance sensor 700 to detect whenthe user's hand (fingers) are positioned between the sensor and ahandgrip. Similarly, in some embodiments, a hand control switchpack maycontain the haptic vibration motor 806 rather than mounting the hapticvibration motor 806 to the end of the handlebar.

In some embodiments, the handgrip heating system 100 includes multipleelectronic processors as an alternative to the single electronicprocessor 102. For example, as mentioned above, each of the left andright handgrips 103 and 105 may include an electronic processor 808 whenconfigured as a combination grip. Similarly, in some embodiments, eachof the left and right handgrips 103 and 105 may include an individualelectronic processor for controlling heating, feedback, or a combinationthereof. For example, FIG. 9 schematically illustrates a handgripheating system 900 including a first (left) handgrip control module 901Aand a second (right) control module 901B, each of which are configuredto independently control the left and right grip heating modules 104 and106, respectively. The left handgrip control module 901A includes anelectronic processor 902A and the right handgrip module 901B includes anelectronic processor 902B. In some embodiments, as illustrated in FIG.9, either or both control modules 901A and 901B may further include oneor more of a memory 918A and 918B and a transceiver 920A and 920B. Thecomponents of the heating system 900 and functionality thereof may besimilar to those described above in regard to the system 100 of FIG. 1and therefore, for sake of brevity, are not discussed in detail here.For example, memory 918A and 918B may be configured similar to thememory 118 and transceivers 920A and 920B may be configured similar tothe transceiver 120.

In the illustrated handgrip heating system 900, the control modules 901Aand 901B (in particular, processors 902A and 902B) control and monitortheir respective heating modules 104 and 106, effectively replacing theH-bridge 112 (and diode 134) illustrated in the system 100 of FIG. 1.Here, the processors 902A and 902B are configured to measure thetemperature of their respective handgrip 103 and 105 via the respectivetemperature sensor 126 and 128. Based on the received temperaturecompared to the temperature setting/state (described above), eachprocessor 902A and 902B provides power (or reduces or discontinuespower) to the respective heating element 122 and 124. In other words,the modules 901A and 901B control and monitor the heating operation oftheir respective handgrip 103 and 105 independent from each other,reducing the risk of a significant temperature difference between thetwo handgrips. In some embodiments, either or both of the first handgripand the second handgrip include a grip sensor (for example, grip sensors136 and 138) and wherein the power supplied to the respective handgrip103 and 105 is further based on an input from the respective grip sensor136 and 138. In alternative embodiments, either or both processors 902Aand 902B are configured to determine whether a user is gripping therespective handgrip 103 and 105 based on a change in rate of heatingbased on the information received from the respective temperature sensor126 and 128 (for example, without the need for a separate grip sensor138).

The control modules 901A and 901B and/or their components may be coupledto or integrated into the handlebar 202 and other components of themotorcycle 200 similar to the embodiments described above in regard toFIG. 1. For example, in some embodiments, one or both of the controlmodules 901A and 901B are included in hand control switchpacks coupledto the handlebar 202. The control modules 901A and 901B may be housedtogether in a single device or in separate devices. Also, in someembodiments, the control modules 901A and/or 901B and any number oftheir components thereof may be integrated into either or both handgrips103 and 105 similar to the embodiments described above in regard toFIG. 1. As described above with respect to the system 100, each controlmodule 901A and 901B may include short circuit protection and may beconfigured to shut down operation of the respective heating module inresponse to a current or voltage exceeding a predetermined amount orlevel. Each control module 901A and 901B may also be configured to turnoff or otherwise inhibit heated grip functionality in their respectivegrips based on commands received from other components associated withthe motorcycle 200, such CAN messages relating to load shedding ordirect commands to turn off heating.

As illustrated in FIG. 9, one or both of the control modules 901A and901B may communicate with a user interface 940, such as over a directconnection or a communication network of the motorcycle 200, such as aCAN bus. In some embodiments, the user interface 940 includes amomentary switch that allows a user to toggle through a set ofpredefined temperature levels (for example, “OFF,” “HIGH,” “MEDIUM,” AND“LOW”). However, it should be understood that other types of userinterfaces may be used. Furthermore, the user interface 940 may beincorporated in or mounted on various component of the motorcycle 200.

In some embodiments, only one of the control modules 901A and 901Bcommunicates with the user interface 940 and may operate as a “master”for the system 900 by communicating a temperature level (set via theuser interface 940) to other components, including the other controlmodule. For example, as illustrated in FIG. 9, in some embodiments, theuser interface 940 is included in or mounted on the left handgripcontrol module 901A and the electronic processor 902A included in theleft handgrip control module 901A communicates the power state to theright handgrip control module 901B via the transceiver 920A, which mayconnect the modules 901A and 901B via a CAN bus. As illustrated in FIG.9, the left handgrip control module 901A may also communicate with anindicator 950, such as an instrument panel displaying a graphical userinterface, one or more LEDS, or the like, included in the motorcycle 200to inform a user when the handgrips 103 and 105 are being heated and,optionally, the current temperature level of the handgrips. In someembodiments, the indicator 950 may also output information to inform auser of faults, such as faults detected by the left handgrip controlmodule 901A as described below.

In some embodiments, the left handgrip control module 901A communicateswith the indicator 950 through one or more intermediary devices. Forexample, in some embodiments, the left handgrip control module 901Acommunicates with a body control module (BCM) included in the motorcycle200 (via the transceiver 920A), which relays information to theindicator 950. In particular, in some embodiments, BCM allows forcommunication between components connected to different communicationnetworks within the motorcycle 200.

In some embodiments, one or both of the control modules 901A and 901Bmay communicate with the indicator 950 to receive a displayed or outputpower or temperature level. For example, as illustrated in FIG. 9, theleft handgrip control module 901A may receive the temperature levelcurrently being output (displayed) by the indicator 950 and compare thecurrent output to the current temperature level to check for faults.

It should be understood that, in some embodiments, separate userinterfaces 940 and separate indicators 950 may be provided for eachhandgrip 103 and 105. For example, separate user interfaces 940 may beprovided to allow a user to set a different temperature level for eachhandgrip 103 and 105. Similarly, separate indicators 950 may be used toinform a user of the temperature level set for each handgrip 103 and105, which may vary using the separate user interfaces 940. In thisembodiments, the control modules 901A and 901B may communicate withtheir respective user interfaces 940 and indicators 950 or one of thecontrol modules may continue to operate as the master for both of theuser interfaces 940 and both of the indicators 950 as described above.

Accordingly, as compared to the embodiment of FIG. 1 wherein a singlepair of wires (total of two wires) are used to provide power to theheating elements and temperature sensors to the one of the grip heatingmodules (for example, the right grip heating module 106) and theelectronics are contained in the other grip heating module, theembodiment illustrated in FIG. 9 uses two pairs of wires (total of fourwires) for each heated grip. As illustrated in FIG. 9, in someembodiments, the handgrips 103 and 105 themselves contain only atemperature sensor 126 and 128 (for example, a thermistor) and a heatingelement 122 and 124 wherein the electronic circuitry is contained ineach hand control module. In particular, the left handgrip controlmodule 901A contains the circuitry for driving and sensing the leftheated grip and the right handgrip control module 901B contains thecircuitry for driving and sending the right heated grip.

Closed-loop and independent temperature control allows for precisetemperature measurement and control of the right and left handgripsindividually. Independent heating control of each handgrip may beadvantageous in particular in situations where each handgrip operates(heats or cools) at a rate different from another or is operating underdifferent conditions. For example, when a user grips one handgrip duringoperation and not the second handgrip, the air velocity over and airtemperature experienced by the exposed handgrip will reduce the rate ofheating of the exposed handle. The control module 901A or 901B of theexposed handgrip may accordingly adjust the temperature to compensatefor the reduced rate. Accordingly, the independent heating operation ofthe handgrips 103 and 105 allows the control circuits to maintain aconsistent and accurate temperature of each handgrip. In addition, asnoted above, the independent operation of the handgrips 103 and 105allows a user to command the output (temperature level) of each handgripindependently, such as to heat the handgrips 103 and 105 to differenttemperatures if desired. Furthermore, integrating the heated gripsdriver and sense circuitry into the hand controls subsidizes the cost ofthe heated grips by eliminating an external control module. Thisconfiguration also provides advantages relating to the serviceability ofparts. For example, with this configuration, each grip can be replacedindependently and the same part can be used for each grip. Similarly,two separate control circuits and electronic processors eliminate singlepoints of failure. Therefore, failure of one of the grips in manysituations does not impact the operation of the other grip. The separatecircuits and processors also allow each heated handgrip to beindependently brought to a safe state, such as by turning of anindividual heated handgrip, detecting faults of an individual handgrip,and the like. This independent temperature control embodiment alsoeliminates the need for an H-bridge (and associated diode) or similarcomponents as included in system 100, which reduces complexity and costof the system 900.

As noted above, detected grip information may be used in various ways tocontrol heating, haptic feedback, and even operation of the motorcycle.For example, actions taken by a rider assistance function may be limitedwhen the user is not gripping one or both of the handgrips 103 and 105or is gripping a handgrip lightly. In particular, a motorcycle equippedwith an adaptive cruise control or automated emergency braking systemmay apply greater or lower levels of acceleration and deceleration basedon the sensed user hand position. For example, when user is holding thehandgrips tightly, the system may allow quicker deceleration than whenthe user only has a hand on one of the two handgrips. Similarly, hapticfeedback provided through the handgrips 103 and 105 may be modifiedbased on whether the user is griping the handgrips (to preserve power inactivating haptic feedback), has a light or tight grip on the handgripsand 103 and 105 (to ensure the user feels the haptic feedback), orwhether the user is wearing gloves (again to ensure the user feels thehaptic feedback). For example, if the user is wearing gloves (or thickgloves), gloves, the intensity of the haptic feedback in a handgrip gripor the heated grip temperature may be increased to compensate for theglove.

In some embodiments, the amount of time a user has gripped a handgrip103 or 105 (with any grip or with a grip of a particular intensity) isalso tracked and used to control operation of the vehicle. For example,in some embodiments, an amount of time since a user's grip has changedmay be used to determine a vigilance or alert state of the user, whichcould be used to provide alerts to a user or automatically modifyvehicle operation.

Thus, embodiments described herein provide, among other things, a heatedhandgrip system for a handlebar, such as a motorcycle. Some proposedsystem described herein allow for independent temperature control ofboth the left side and the right side of heated grips without requiringan additional sensor wire, such as from the right side grip to the leftside grip. Rather, some embodiments of the proposed system uses twowires and a polarity switching circuit, such as an H-bridge, to switchthe right side grip between heat and temperature sense. Heating providedthrough the handgrips may be controlled based on a sensed user grip,which may also be used to control haptic feedback provided through thegrips, motorcycle operation, or a combination thereof. As also describedherein, in some embodiments, heating and grip sensing may be providedthrough a multi-function printed circuit board, which reduces cost andcomplexity. As further described herein, in some embodiments, separatecontrol modules may be used for each handgrip that independent controls(through a closed loop) the temperature of each grip. It should beunderstood that the various functions described herein as beingperformed via a handgrip can be applied in various configurations. Forexample, in some embodiments, a handgrip may only provide heatingfunctionality. Similarly, in some embodiments, a handgrip may onlyprovide grip sensing or only provide haptic feedback. Accordingly, itshould be understood that the specific combination of functionalitydescribed herein are provided merely as examples and should not beconstrued as limiting.

What is claimed is:
 1. A heated handgrip system including: a firsthandgrip including a first heating element and a first temperaturesensor configured to produce a temperature signal indicative of atemperature related to the first heating element; a second handgripincluding a second heating element and a second temperature sensorconfigured to produce a temperature signal indicative of a temperaturerelated to the second heating element; a first electronic processorcommunicatively coupled to the first handgrip, the first electronicprocessor configured to receive a first temperature signal from thefirst temperature sensor, compare the first temperature signal to afirst predetermined temperature threshold, and adjust power supplied tothe first heating element via the first electronic processor based onthe comparison of the first temperature signal to the firstpredetermined threshold; and a second electronic processorcommunicatively coupled to the second handgrip, the second electronicprocessor configured to receive a second temperature signal from thesecond temperature sensor, compare the second temperature signal to asecond predetermined temperature threshold, and adjust power supplied tothe second heating element via the second electronic processor based onthe comparison of the second temperature signal and the secondpredetermined threshold.
 2. The system of claim 1, wherein the firstelectronic processor and the second electronic processor operate therespective first heating element and second heating element independentof each other.
 3. The system of claim 1, wherein the first predeterminedthreshold and the second predetermined threshold are the same.
 4. Thesystem of claim 1, wherein either or both of the first electronicprocessor and the second electronic processor is housed outside of thefirst handgrip.
 5. The system of claim 1, wherein either or both of thefirst electronic processor and the second electronic processor is housedoutside of the second handgrip.
 6. The system of claim 1, wherein eitheror both of the first electronic processor and the second electronicprocessor is housed in the first handgrip.
 7. The system of claim 1,wherein either or both of the first electronic processor and the secondelectronic processor is housed in the second handgrip.
 8. The system ofclaim 1, wherein either or both of the first handgrip and the secondhandgrip include a grip sensor and wherein the power supplied to therespective handgrip is further based on an input from the respectivegrip sensor.
 9. The system of claim 1, wherein either or both of thefirst electronic processor and the second electronic processor isconfigured to receive a set temperature level received through a userinterface, wherein the set temperature level defines at least one of thefirst predetermined threshold and the second predetermined threshold.10. The system of claim 9, wherein either the first electronic processoror the second electronic processor are configured to communicate the settemperature level to the other electronic processor.
 11. The system ofclaim 9, wherein either or both of the first electronic processor andthe second electronic processor is configured to communicate the settemperature to at least one indicator.
 12. The system of claim 9,wherein either or both of the first electronic processor and the secondelectronic processor is configured to receive a state of the at leastone indicator and compare the state of the at least one indicator to theset temperature level.
 13. The system of claim 12, where either or bothof the first electronic processor and the second electronic processor isconfigured to set a fault status in response to the state of the atleast one indicator not matching the set temperature level.
 14. A methodof heating a first handgrip and a second handgrip included in a vehicle,the method comprising receiving, via a first electronic processorassociated with the first handgrip, a first temperature signal from afirst temperature sensor associated with the first handgrip; comparing,via the first electronic processor associated with the first handgrip,the first temperature signal to a first predetermined temperaturethreshold; adjusting, via the first electronic processor, power providedto a first heating element associated with the first handgrip based onthe comparison of the first temperature signal and the firstpredetermined temperature threshold; receiving, via a second electronicprocessor associated with the second handgrip, a second temperaturesignal from a second temperature sensor associated with the secondhandgrip; comparing, via the second electronic processor associated withthe second handgrip, the second temperature signal to a secondpredetermined temperature threshold; and adjusting, via the secondelectronic processor, power provided to a second heating elementassociated with the second handgrip based on the comparison of thesecond temperature signal and the second predetermined temperaturethreshold.
 15. The method of claim 14, wherein adjusting the powerprovided to the first heating element associated with the first handgripincludes adjusting the power provided to the first heating element basedon the comparison of the first temperature signal and the firstpredetermined temperature threshold independent of the comparison of thesecond temperature signal and the second predetermined threshold. 16.The method of claim 14, wherein adjusting the power provided to thesecond heating element associated with the second handgrip includesadjusting the power provided to the second heating element based on thecomparison of the second temperature signal and the second predeterminedtemperature threshold independent of the comparison of the firsttemperature signal and the first predetermined threshold.
 17. The methodof claim 14, further comprising receiving, via the first electronicprocessor, a set temperature level from a user interface, wherein theset temperature level defines at least one of the first predeterminedthreshold and the second predetermined threshold.
 18. The method ofclaim 17, further comprising communicating, via the first electronicprocessor, the set temperature level to the second electronic processor.19. The method of claim 17, wherein communicating the set temperaturelevel to the second electronic processor includes communicating the settemperature to the second electronic processor via a controller areanetwork (CAN) bus included in the vehicle.
 20. The method of claim 17,further comprising communicating, via the first electronic processor,the set temperature level to at least one indicator included in thevehicle.